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I am very happy to make this post after quite sometime we finally got Lou's twin-scroll monster on the dyno. It's an 06 STi with basic bolt-ons including a JDM-Twinscroll turbo (VF37) and the Tomei twin-scroll header.

what's spool on the street? As the dyno sheet doesn't make it look very impressive.

On this dyno, a 2.5L WRX will put down 165whp stock. It defines the term 'heartbreaker'. Definitely a very humbling, but very accurate dyno. I've seen that 35R graph, a healthy GT30 Evo's, an SR56, a few STi's....definitely a very low reading dyno. We figured it out, roughly 14% percent lower than a Dynojet.

Quote:

Originally Posted by 555 Motorsports

here is a stage 2 05 sti for comparison, the biggest thing is how much more tq

263/296 vs. 287/353?! It is pretty crazy. I'm trying to talk Lew into going to a Dynojet with me, because if my reasoning doesn't fail me, that's around 400ish ft/lbs of torque, by the more conventional Dynojet measure.

The car is wicked...it's seriously like a V8, in the amount of torque and lightning fast power delivery. First time I rode in it, I think my neck hurt for a few days afterwards. I'm jealous.

You've mis-understood me. I'm not knocking his numbers. Just wondering what it spools like on the street. The extra graph only shows me just how close it is to a vf39 as far as when they reach 300wtq. I guess i was just expecting it to be more than 100rpm difference.

It's hard to judge spool by a dyno graph, and even harder to compare from Mustang dynos across to Dynojets. The Mustang shows peak torque later than full boost most of the time, so I'd imagine it's not the best depiction. Now if we could get some logs up (ahem, Matt ), it'd be a bit easier.

the downpipe to turbo flange had to be converted over to a JDM DP flange. The twin-scroll turbos use a different flange for the downpipe.

oh ok! Sorry I thought you meant the downpipe to midpipe. I got scared because I thought jdm dp meant you had to modify the length to reach or something. Only reason I asked is that I am picking up a jic full ti and hoped it worked with my UR downpipe.